BUZZ-Trinity Mirror: down on H1 revenue warning
** British newspaper publisher Trinity Mirror (LSE: TNI.L - news) down c.5 pct, one of the top percentage losers on the LSE
** Sees an 11 pct drop in H1 revenue as print advertising markets continued to remain challenging
** Cost saving target has been increased to 20 mln stg from 10 mln stg
** Barclays (LSE: BARC.L - news) cuts TP to 160p from 185p, saying more savings implies more risks for future progress
** Trinity Mirror, which owns the Daily Mirror and Sunday Mirror titles, has been embroiled in the high-profile celebrity phone-hacking scandal (RM (LSE: RM.L - news) : aastha.agnihotri.thomsonreuters.com@reuters.net)